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Self-study IT network Linux load balancing video tutorial

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Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

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Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Band of Brothers front-end example display video tutorial

Course Advanced 11329

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in php any value has a unique string representation (such as the php code itself). I post this question to speed up the design process of this program. Some values are easily converted to strings: numbers, booleans, etc. Some are not easy: objects, arrays, resources. I think the transfer object and

2023-09-05 15:34:44

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实例代码：使用PHP调用Twitter的RSS

Course Introduction：实例代码：使用PHP调用Twitter的RSS。守望轩博客右侧边栏原来有个杂感的栏目，用来记录短的、不能大篇幅成文的短句，或者自己比较喜欢的短句和言论。这个栏目最开始调用

2016-06-13 comment 0 935

How to display the URL QR code in the address bar in Maxthon Browser

Course Introduction：Maxthon Browser has a very fast rendering speed and very stable and smooth performance, which can bring users a good browsing experience. Does anyone know how Maxthon Browser displays the URL QR code in the address bar? Here I will give you a detailed introduction to how Maxthon Browser displays the URL QR code in the address bar. If you are interested, you can take a look. . Operation method: Method 1: 1. Double-click to enter the software, right-click on the left sidebar, and select "Address Bar Display Settings" in the option list. 2. Then click the "Show URL QR Code Button". Method 2: 1. Click the three horizontal lines icon in the upper right corner of the software page, and then click "Settings" in the option list below

2024-08-08 comment 0 323

How to view personal QR code on Weibo How to view personal QR code

Course Introduction：On the Weibo platform, viewing personal QR codes is a very convenient function. It allows you to easily share your Weibo account with other users, promoting social interaction and fan growth. The steps are quite simple: first, log in to your Weibo account and enter your personal homepage; then, find and click "My QR Code" or the corresponding QR code icon on the page. Usually this option is located in the sidebar of the page. Or in the top menu; then, your exclusive Weibo personal QR code will be displayed. How to view personal QR code on Weibo 1. First open the Weibo software. After entering the homepage, we can see the recommended Weibo. Here we click [Me] in the lower right corner; 2. Then in my page we You can see three different icons in the upper right corner, we click [

2024-06-09 comment 0 879

How to scan QR code to follow friends on NetEase Cloud Music How to scan QR code to follow friends

Course Introduction：The operation method of "NetEase Cloud Music" is to scan the QR code to follow your friends, all with lossless sound quality, and the software has rich and powerful functions, which allows you to scan the QR code and follow your friends. Let's follow us to take a look. NetEase Cloud Music scan the QR code to follow friends, open the NetEase Cloud Music homepage, and click the "three horizontal lines" icon in the upper left corner. Go to the sidebar of the homepage and click the "Scan" icon in the upper right corner. Enter the scanning interface and click the "Album" option in the upper right corner. Enter the mobile phone album, click on the NetEase Cloud QR code image, and identify the QR code image. After successful recognition, enter the friend's homepage and click "Follow" on the page to add friends.

2024-06-12 comment 0 741

How to import book sources into Shumi app How to import book sources into Shumi app

Course Introduction：How does Shumi app import book sources (Book fan app book source import method). Many netizens don’t know exactly how to operate it. Let’s go and take a look. 1. To add book sources, you must first search for book sources and find the required imported resource websites. 2. There are two ways to add book sources, namely pasting the book source code and scanning the book source QR code. 3. Then open the software app, click the settings page icon, and select [Book Source Management] in the pop-up sidebar. 4. Find and select [New Book Source]. 5. In the "New Book Source" page that opens, select "Paste Book Source". 6. At this point, the book source information is pasted into the corresponding position on the page. 7. If you want to use the book source QR code to import, press and hold the book source QR code, select [Save Image], and first save the book source QR code.

2024-06-17 comment 0 1114

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